Re: gEDA-user: Heterogenous multislotting

[John Griessen <john_g@cibolo.com>]

I also ignore the slotting feature for most parts I use lately...
Especially any part that comes in only a few packages.  I find it harder to deal with the extra 
information hiding of slotting in the case of more than 30 pins -- I want the info right there.  

A new symbol for every package variant is  not so hard for a microprocessor or 
mixed signal chip, and when you abandon slotting, you do not have to deal with the pinseq
parameter, which makes a symbol very simple.  You can start with a 
copy of a generic template symbol and rapidly have a box with pins labeled for the new
part.   Another thing that goes along with this approach is to put your pcb footprint
attribute on the part, since it IS package specific now.

Like Matt says, there is no change needed to use gschem as is to 
make for instance, 2,3 or 4 symbols that represent
2, 3,or 4 areas of connections to a big chip...especially a 
mixed signal one where multiple kinds
of power and ground connections are important to good working.

John G

On Wed, 2004-04-07 at 13:33, Matt Ettus wrote:
>  multislotted components
> > (a DPDT relay, and a double triode tube as examples).

> I've done this quite a lot.  Its hard to work with 240 pin parts without it.  I
> just make sure to give the parts the same UREF and different pin numbers.  I
> totally ignore the slotting mechanisms 
-- 
John Griessen    Cibolo Design       Austin Texas, linux counter #249315